Liquid-fuel burner.



C. H. SPBER.

LIQUID FUEL BURNER.

APPLmATIoNHLBD 0111.27, 190s.

Patented Mar. 15,1910.

Inventor:

WM5-uf r M Attys.

:4a-us nmuslm. Lum. ummm. n L

A lng a specification.

UNTED CHARLES H. speen, er ennemie, nennst vente nsstenonur Wimmer M. CARR, or New Yom; u. Y.

" .ATEX

eieren ennuient? To trentenne); suenen.-

.a resident of Chester, County of Delawaree and State uf Pnnfsylvania, have invented certain new and useful ln'ipreveinents in Liquiclluei Burners, et "which the fellow- My invention relates te liquiil ers, and partieularly te burners atlaptetl ter use in cpnneetiun with metallurgical 'Eurnaccs, and comprises a burner provided. with eenling means whereby 0-verheating\0f the huruer and consequent destruction of it are avoided. y

The'ohjects oiny invention arete inifpruve liquid fuel burners, and particularly f burners adapted for use 1n eonnectlen with open hearth furnaces er like metallurgical furnaces, Vto avoid the i'xeeessity of using movable burners for such fur1mceS,-t0 avoid (langer of burning out nl the burners of' such furnaces, to adapt such burners to withstand high temperatures vand contact-'with highly heated furnace gases without burning eut, tu avoid conflensatinn in the mixture ci' air ol-.steam anal fuel vapor in the lmrner,`nml

peeieation ufLettes latent. Paqnd Haig Applnatia ex Getcber 2?, 1908. Serial No.r 45t-2,7%.

fuel hurnl slump' a' detail lui'igitutiinal- :sentieri et the immer, on a larger Scale than Figs. l :and and Fig. al. shows a transverse ,secinn et' the burner. f

W here upeu hearth furnaees and the like are heated hy jets of eil projected from suitable burners arranged un opposite sides 0i the furnace chamber, it the present. prnetice to mount such burners se that when a burner is idle itniay he retracted Withizi the brick wurl; et the urexee and 'en shielded freni the intensely het iurnaee gases ier; ing from sueh furnace chamber, ij/pen hearth furnaeesvsuch referrefl te are neunlly up erated in connectinn with' regeneraims and have burners lecateti en oppoeite sitles'ef the furnaee chamber, which burners re operated in alternatieu; the Haine and prnducts i i the burner or hurner;

ef een'ihustion in on one side @fthe furnace passing out through a suitable flue er lines en the other iside of the furnace after passing through the furnace cl'uunher, and se passing. near the idle burner or burners nn that sitle et' the furnace. These burners are usually mounted in niass et hricl' Work-,termed monkeys, tunning part uf the structure uf the' furnace and containing apertures of considerable size for the insertion and removal of the burners; and these burners, which are of tubular construction, usually require at their rear ends, traveling supports; and they also require flexible connections tu the eil supply pipes and the air or steam supply pipes. The traveling supports for the burners und the flexible connections to the eil and air 0r steam pipes required are expeneive and troublesome and it is 'extremely desirable te eliminate them,

as may he (lune by luy invention. Furthermore, the mass-ee ef brick werk in which the burners are n10unted,.anrl which areterined nmukeys as previously stated, are objectionable, ih that they reduce materially the area of the npeniugs through .which the tun mae-e gases pane to the Aiuee, and obstruct the flow of suc-h also they burn out and must he rebuilt from time t0 time.

Another chjeetion to the use of the flexible eil eo'nneetiens referred tc is that these llexihie eenneetiens are apt to lealtand permit the eil tu flrip en the item3 where it is apt te take fire et any time, caw-sing a Hash of thune which reeuently hurne severely the burner attendant.

My improved burner is provided with a water jacket threugh Dwhich Water is cir eulated to maintain the outer easing et the burner at a relatively low temperature. By this ineens ani able to avoid burning out of the burner Such extent that the Guter cael ing requires renewal only at relatively long intervals, even when exposed, as is the ease 'in rny furnace, te '.lirect contact with the het it l j immediately surrounding the pipe 'through which the Vmixtureof fuel vapor and air or steam is injected into the furnace, I separate the jacket from such ipe by an air space, so avoidin chilling o such va or wliile ef.-

I fectually s ieldin such pipe rom the intense heat of the urnace.-

lIn the accompanying drawing 1 desig;

' I nates the walls of an open hearth furnace of substantially ordinary construction, andv '2 the furnace chamber thereof. 3, 3 designate 'iflues on opposite sides of said chamber through one ofwhich flues highly heated air is admitted I to the furnace, and through ythe other of which the products of combustion escape. The furnace will be un- 4 derstood to be' provided with the usual re# yfthe entering hot air'or the issuing ucts ofcombustion, as the case ma generators to which .these iiues 3 'are connected, but do not illustrate these regenerators.l v

Nunierals4 designate the burnerslwhich,

V.as shown,y project throughl the outer walls of the furnace, and, without being surrounded by protective masses of brick work, pro` ject into the furnace so as to be surrounded prod.

be. y of each For' -convenience the outer en burner is usually supported on asmall pier 5.

6 designates a pipe for supplying oil 7 a pipe for supplying air or steam under pressure, 8 a pipe for supplying cooling water to the jacket and 9 a water discharge P1P@- L Referring tofFigs. 3 and 4 showing the bui'ner in detail, this burner comprises at Iits rear end a section. 10 adapted to form the rear end of the jacket and into which the tubular outer casing 11 of thebiiiiier,

forming the outer wall of the water jacket 12, is screwed or otherwise secured. Another.

tubular member 13, forming the inner wall of the water jacket,. projects through a stuiiing box 14 'at the rear en d of section 10 and vthese members 11 Vand 13 are connected at their front ends by a nose piece 15, hav- -ing an annular cored-out space forming a continuation of the waterjacket 12. 'The usual gland 16 is rovided .in the stuffingbox. lThis stutling box permits relative ex` pansion and contraction of the tubular -mem'- vWithin member-13 "is apipe 17 .through which the air or -steanr for tlieoperation of .the burner is supplied, andfwithin `said pipe 17 is another pipe 18,-through which the voilis supplied, saidlpipelS being led through fa headl piece 19 at the rear of pipe 17 and `:forming a--continuation thereof, and being connected tooil supply pipe (S5-and the airV fuel, j

viously referred to.

or steam supply pipe 7 'is connected to this' e 17, there h chamber 22 'of casingmember 10, from which chamber 4a pipel .'23 extends' through the jacket 19. to nearly ,the front end of the burner, so discharging the cooling water at the extreme front end of thel burner, the

water flowing backward through the jacket 12 to the water discharge pipe 9. In' this pipe I usually provide a suitable regulating the end of` valve 24. This valve, being on the discharge pipe regulates'tlie {iow of water through the burnerwhile maintaining the jacket full Vof water.

The furnace 'is operated with my improved burner the same as furnaces are,equ1ppe with the,l present oil burners, except thatit is notv-ne'cessary to withdraw the burner .which is, to be idle when reversing the action of the frnafob.

Since-no protecting brick monkey for the burner isi-required, th'e entrance and discharge iiuesjof'ythe lfurnace are substantially `unobstructedby the burner, and the, expense of rebuilding' the monkeys from time -to time is obviated., Furthermore, it is not necessary to provide a traveling support for the burner, and the,coiin'ectionsl'of-the oil-ifuid` -steam or air 'pipes to the burners aiea -perinanent nature and so may be maintained tight., thus avoiding. leakage and theconsequent danger ot fire around the burner, pre-` lVhat I claim is yA liquid fuel burner-comprising fuel injection means,- and, aroundV such, injection means, tubes, onel Within another, inclosin a water jacket space, a nose piece connecte lto saidltubes atthe front ends thereof and an annularvmember connected tosaid tubes at the rea-r endsthereof, there being heat insulation space between said fuel injection means and the -inner' of said water-jacket tubes; l

In testimony whereof I have signed this ing witnesses. l

CHARLES H.SPEER.

i Witnesses;

ANNE'RULON GRAY, B. HiLLvARn SwnNar.

ioo

specification in the presence of two subscribe, v 

